<div style="width:100px;height:100px;border:1px solid black">HELLO WORLD</div>

<script src="../src/zepto.js"></script>
<script src="../src/event.js"></script>
<script src="../src/fx.js"></script>

<script>
  $('div').anim({ rotate: '720deg', opacity: .5 }, 2, 'ease-out')
</script>
